What are opamps?
Absolute Maximum Ratings (Supply Voltage/Operating Voltage Range)
Absolute Maximum Ratings
Absolute maximum ratings are conditions that should never be exceeded, even momentarily. For example, supplying a voltage over the maximum rating and/or using in environments outside of the temperature range may cause deteriotration of IC characteristics or even damage.
This section will explain the parameters listed in the absolute maximum ratings for opamps and comparators.
Supply Voltage/Operating Voltage Range
The absolute maximum rated supply voltage is the maximum voltage that can be supplied between the positive supply (VCC) and negative supply (VEE) pins without causing characteristics degradation or damage to the internal circuit.
An example of a supply voltage that can be applied to opamps/comparators with a maximum rated voltage of 36V is shown.
The absolute maximum rated supply voltage indicates the voltage difference between the VCC and VEE pins, with the VCC-VEE values required in order to ensure that the absolute maximum rated supply voltage is not exceeded.
Therefore, when supplying 24V to the VCC pin and -12V to the VEE pin, neither characteristics degradation nor damage will occur since the voltage difference is 36V.
It should be noted that there is a difference between the absolute maximum rated supply voltage and the operating supply voltage.
The absolute maximum rated supply voltage indicates the maximum supply voltage that can be supplied in a range where damage or destruction of the IC wil not occur, not a voltage range for maintaining specifications and characteristics.
In order to fully achieve the characteristics listed in the specifications, a voltage within the operating voltage range must be used.
However, please note that in some cases the absolute maximum rated supply voltage and maximum operating voltage are the same.